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Sustainability 2017, 9(8), 1411; doi:10.3390/su9081411

Characterizing Factors Associated with Built-Up Land Expansion in Urban and Non-Urban Areas from a Morphological Perspective

1
School of Remote Sensing and Information Engineering, Wuhan University, Wuhan 430079, China
2
Institute of Urban Studies, Shanghai Normal University, Shanghai 200234, China
3
Key Laboratory for National Geographic Census and Monitoring, National Administration of Surveying, Mapping and Geo-Information, Wuhan University, Wuhan 430079, China
4
Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 73000, China
5
Wuhan Planning & Design Institute, Wuhan 430014, China
*
Author to whom correspondence should be addressed.
Received: 10 July 2017 / Revised: 2 August 2017 / Accepted: 4 August 2017 / Published: 10 August 2017
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Abstract

In this paper, built-up land expansion patterns and the associated factors were characterized in urban and non-urban areas across the Wen-Tai region of eastern China. Fractal dimension can be used as a reliable indicator of the complexity of built-up land form, and the increasing trend of fractal dimension indicated a more complex, dispersed pattern of built-up land in urban areas. Spatial regression models were quantitatively implemented to identify the indicators influencing the variation of fractal dimensions. Our findings suggested that the fractal dimension of built-up land forms was positively correlated to the patch density and elevation when built-up land expansion was more concentrated. Both landscape shape index and Gross Domestic Product (GDP) were positively correlated with fractal dimension in urban areas, and total edge, edge density, and connective index had impacts on fractal dimension in non-urban areas. Slope and agricultural population also showed an influence on fractal dimension. This study provided a new way for urban studies in interpreting the complex interactions between fractal dimension and related factors. The combined approach of fractal dimension and spatial analysis can provide the government planners with valuable information that can be efficiently used to realize the influences of land use policies in urban and non-urban areas. View Full-Text
Keywords: fractal measures; built-up land expansion; associated factors; urban and non-urban areas fractal measures; built-up land expansion; associated factors; urban and non-urban areas
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Zhang, Z.; Xiao, R.; Yu, W.; Liu, Y.; Lin, M.; Wang, M. Characterizing Factors Associated with Built-Up Land Expansion in Urban and Non-Urban Areas from a Morphological Perspective. Sustainability 2017, 9, 1411.

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